90309830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{701}}^1\times {\mathrm{991}}^1$

素因数の和:1712

約数の個数: 32

約数和(自身を含む): 175488768

約数和(自身を除く): 85178938

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 701, 991, 1402, 1982, 3505, 4955, 7010, 9113, 9910, 12883, 18226, 25766, 45565, 64415, 91130, 128830, 694691, 1389382, 3473455, 6946910, 9030983, 18061966, 45154915, 90309830]

約数ペア:

[(1, 90309830), (2, 45154915), (5, 18061966), (10, 9030983), (13, 6946910), (26, 3473455), (65, 1389382), (130, 694691), (701, 128830), (991, 91130), (1402, 64415), (1982, 45565), (3505, 25766), (4955, 18226), (7010, 12883), (9113, 9910)]